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This range is provided by Stealth AI Startup. Your actual pay will be based on your skills and experience โ talk with your recruiter to learn more.
Base pay range
$150,000.00/yr - $250,000.00/yr
Additional compensation types
RSUs
Craft the interface of intelligence: fast, structured, and radically adaptive.
About Noumena
Noumena is an AI research lab and product company building toward AGI through narrow, adaptive intelligence. Our systems evolve through use, reflecting and amplifying the judgment of the people who work with them. We own every layer, from infra to interface, so intelligence and interaction can evolve in lockstep.
Weโre starting with expert software developers. But the platform weโre building will adapt to experts across fields: engineering, research, operations, and beyond.
About the Role
Weโre hiring a frontend systems engineer to shape the public and product-facing surfaces of Noumenaโs intelligence platform. This is a foundational role where UI isnโt just presentation; itโs how intelligence becomes legible, learnable, and trusted.
Youโll build adaptive, real-time interfaces that sit directly atop our evolving models and runtime systems. Youโll work across modeling, infrastructure, and product teams to ensure every surface you touch feels coherent, structured, and fast, even as it adapts in real time.
This isnโt frontend-as-polish. Itโs frontend as interface logic, crafted for experts who think deeply and move quickly.
TypeScript, React, Next.js, Tailwind, Node.js. Bonus points for experience across the stack with Python or Rust and with adaptive or model-facing UI architectures.
What Youโll Do
- Architect and build production-grade UIs with real-time feedback loops
- Lead implementation of developer-facing experiences (docs, onboarding, auth, billing)
- Collaborate with infra and model teams to align interaction patterns with backend logic
- Shape internal tools that support structured planning and engineering workflows
You May Be a Good Fit If You:
- Have deep expertise with React, TypeScript, and modern frontend architectures (e.g., Next.js, Vite)
- Think in systems, not stacks, designing flows and states that remain stable under complexity
- Have built production auth, billing, or IAM flows with performance in mind
- Write maintainable, performant code that improves every system it touches
- Know how to balance clarity and speed across evolving requirements
- Lead through quality, setting standards and mentoring others by example
- Value developer UX, docs, onboarding, and long-term maintainability
- Navigate ambiguity with craft, ownership, and curiosity
Bonus Points For:
- Experience building dev-facing platforms, SDKs, or public APIs
- Familiarity with identity (Clerk, Auth0, NextAuth) and billing systems (Stripe, Metronome, Orb)
- Optimizing frontend systems for global, low-latency users
- Experience with SEO metadata, structured data, and indexing
Why This Role Matters
This is the surface where deep systems meet real people. Itโs the frontend of a frontier: the invitation to trust, to explore, to build. What you ship will shape how Noumena is seen, understood, and used.
You wonโt just polish a product. Youโll craft the public intelligence layer of a vertically integrated system, where every pixel, prompt, and pattern is grounded in clarity, coherence, and control.
Team & Culture
Weโre a small, senior team of researchers, engineers, and builders. We value deep ownership, curiosity, and deliberate thinking. We care about coherence, from silicon to syntax, and we move with quiet urgency.
Weโre remote-flexible and invest in real-world time together, especially during pivotal build phases. Weโre radically deliberate: open to experimentation, allergic to drift, and committed to systems that matter.
Location & Compensation
- Remote-flexible (with travel covered for quarterly in-person gatherings)
- Open to candidates spending time in the Bay Area during key build phases
- Includes meaningful equity: high-impact work means high ownership
Seniority level
- Seniority levelMid-Senior level
Employment type
Job function
- IndustriesTechnology, Information and Internet
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Inferred from the description for this job
Medical insurance
Vision insurance
401(k)
Paid paternity leave
Paid maternity leave
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